Device for raising and conveying beer from storage vessels by the direct influence of air-pressure of variable strength.



J. H. W. ORTMANN &-G. W. a; HERBST. DEVICE FOR RAISING AND CONVEYINGBEER FROM STORAGE VESSELS BY THE DIREQT INPLUENGE OF AIR PRESSURE OFVARIABLE STRENGTH.

APPLICATION FILED 1330.4, 1906.

' Patented June 15.1909.

5 Eigi T T I11 .7 I J57; .Znrg Mil/17177 i 71: 1:2 2/ M QPUlIVbt/In[brink/519M517 J/fime 3/5 In: nonm: PETERS cm, wAsnuvcmN, n, c.

J. H. W. ORTMANN & G. W. G. HERBST. nmon ron RAISING AND CONVEYING BEERmom swomes vnssm BY THE n11.201 mrwmwn or m rnnssunn or VARIABLESTRENGTH.

APPLIOATION FILED D150. 4, 1906. v

Patented June 15. 1909.

m: NCRRIS Pzrl'ns 50., wnsumcron. I c

J. 'HpW. ORTMANN & C. W. 0. HERBST. DEVICE FOR RAISING AND CONVEYINGBEER mom STORAGE vBssELs BY THE DIRECT INFLUENCE OF AIR PRESSURE 0FVARIABLE ETRENGTH. APPLIIOATION FILED 1130.4, 1906.

925,21 9. Patented June 15. 1909.

4 snare-slum a.

rnz NoRRis PETERS cm, WA5HINGTDN, n. s,

J. H. W. ORTMANN & 0. W. 0. HERBST. DBVTOE FOR RAISING AND CONVEYINGBEER PROM STORAGE VESSELS BY THE DIRECT INFLUENCE OF AIR PRESSURE 0FVARIABLE STRENGTH.

APPLICATION FILED DEG-4, 1906- 925,21 9. Patented June 15,1909.-

4 SHBBTS BHEET 4.

/ .A flan-214910 l 22: E h N 1H: rloRRls PETERS co, wAsHINcToN, n, c.

UNITED STATES PATENT OFFICE.

JOHN HENRY WILLIAM ORTMANN AND CARL wILnELM CORNELIUS HERBST, orHAMBURG, GERMANY.

DEVICE FOR RAISING AND CONVEYING BEER FROM STORAGE VESSELS BY THE DIRECTINFLUENCE OF AIR-PRESSURE OF VARIABLE STRENGTH.

Specification of Letters Patent.

Patented June 15, 1909.

Application filed December 4, 1906. Serial No. 346,209.

T all whom it may concern:

Be it known that we, JOHN HENRY WIL- LIAM ORTMANN and CARL WILHELMCORNE- LIUs IIEnBsT, residing at the freetown of Hamburg, in the Stateof Hamburg, Gothenstrasse 9, Germany, have invented a new and usefulImprovement in Devices for Raising and Conveying Beer from StorageVessels by the Direct Influence of Air-Pressure of Variable Strength, ofwhich the following is a specification.

The invention has reference to a device for raising and conveying beerfrom storage ves sels by the direct influence of air pressure of v iablestrength.

Among other objects the invention provides for the change of pressurewhich takes place in the socalled pressure regulators being broughtabout not suddenly but gently and gradually so as to avoid producing anunfavorable effect on the beer. It is therefore a question of securingthe beer against sudden and violent shocks and allowing the pressure tobe put on and taken oil gently and gradually. This is effected by asuitable arrangement and working of the valves and outlets in thepressure regulator.

In order that our invention may be readily understood we have appendedhereunto 3 three sheets of drawings, showing various suitable devices ofthis kind.

Figure 1 gives a side view of such a device in partial section. Fig. 2is a plan. Fig. 3 is a section through the two pressure changing vesselsof the apparatus and Fig. 4 a section through the slide valve of theapparatus on a larger scale.

The two pressure changing vessels a and a through which the beer passesalternately are arranged on a portable frame and are provided at theirlower ends with pipes f and f (Fig. 3) finishing in a boX where on theone side they are connected with the common inlet pipe d and on theother side with the common beer outlet pipe t. In the coupling box,valves e and e are provided for the inlet and s s for the outlet.

At the upper end the pressure changing vessels are provided withopenings to which are attached the air outlet pipes 2. Moreover thereare at the upper end of these vessels the entrances of air pressureinlet pipes q and 9 In each of the vessels at and a there is a floatingweight b (Fig. 3). These floating weights are arranged to slide onmovable rods 0. The movable rods 0 have on their upper ends valve plugsg which serve to close the air outlet pipes z.

The air pressure outlet pipes 2 lead to the cylinders 2 of a slide-valve(Figs. 2 and 4). In these cylinders are sliding pistons t which areconnected with the slide rod 70. This slide rod 76 passes through thevalve boX Z. Into this there opens on the one side the pipe 72 from theair pressure pump or pumps while on the other side outlets 0 and n areprovided in it which pass into the pipes g and Moreover a slide 'm isprovided inside the box, the sliding of which opens and closesalternately the ways 0 and n. The slide rod 7r is in the inside of thebox provided with a collar 3, by which the slide 'm is kept inconnection with the rod 76.

In the cylinders 2 outlets p are placed beyond the openings of the pipes2 for the compressed air through which the latter can pass oil to theatmosphere after its work is done.

In the cylinder pipe 7) for the compressed air a safety valve w isprovided which by means of a weight y sliding on the lever cc can beadjusted to a fixed pressure.

The common outlet pipe tfor the beer leads into a glass vessel it whichis provided with a pressure gage 30 and serves for indicating the flowof the beer and for measuring the pressure. From this vessel the beerpasses through the pipe 31 into the conveyer pipe by which it is takenwhere required. The pipe 31 which opens at the lowest place in thevessel u is kept open by a ball float 32.

The method of working the apparatus is as follows: At the position ofthe several parts shown in the drawing, the pressure changing vessel ais to be understood as being nearly full of liquid, while the pressurechanging vessel (1 is correspondingly empty. In 0011- sequence of thisthe floating weight b of the vessel a is at the upper end of the vesseland presses the valve plug 9 against its seat by which means the airoutlet pipe 2 which leads to the slide valve is closed. On the otherhand the weight b in the vessel a presses on the projection h near thelower end of the rod 0 and thereby presses down the rod 0 and removesthe valve plug 9 from its seat. In consequence of this the interior ofthe vessel a comes into communication with the pipe 2 and the cylinder 2of the slide valve. By this means the slide m of the valve box Z isbrought into such a position that the compressed air introduced throughthe pipe 1) can reach the vessel a through the pipe q. As a consequencethe beer is forced out of the vessel (1, through the pipes f and it intothe glass at and on into the conveyer pipe 31. This makes the floatingweight b sink gently and press at the end of its movement against theprojection 72/ on the rod 0. It is now limited in its downward. movementwhile the surface of the liquid in the vessel goes on gently sinking.Owing to this further sinking of the surface of the liquid, the floatingweight comes more and more out of the liquid and in the same proportionits own weight makes itself more and more felt. At the moment when theapparent weight of the float resting on the rod 0 has so far increasedthat it has become greater than the product of the value of the airpressure prevailing in the interior of the vessel and the value of theend surface of the valve plug 9 which faces toward the interior of thevessel, the plug is forced away from its seat and the rod 0 descends.Then the compressed air from the pressure changing vessel a can pass offand through the pipe 2 gets to the back of the piston & of the slidevalve while the remainder of the beer leaves the vessel or with retardedflow. The compressed air which gets behind the piston 'i causes it toslide and also the valve rod which works in conjunction with it. Thismakes the slide at in the box Z move so far that the way 0 for the pipeq is completely closed and the way a for the pipe is fully open. At thesame time owing to the sliding of the piston i the outlet opening 2.) isuncovered so that the compressed air passing off from the pressurechanging vessel a can now escape into the open. After this change in thevalve is effected the compressed air brought in through the pipe 12flows through the way n and the pipe 9 into the vessel a During theproceedings just described this has again been filled up with beer whichbegins to flow in from the storage vessel under a slight excess ofpressure of, for example 4/ 10 atmospheres as soon as the pressure inthe corresponding pressure changing vessel has sunk low enough after theopening of the air outlet pipe .2. As the pressure in the changingvessel decreases gradually the incoming of the beer begins slowly andgoes on gradually so that the occurrence of undesirable shocks to thebeer which may influence its quality is avoided. In the same way theincoming of the beer into the changing vessel ends gradually as soon asthe valve 9 is pressed against the air outlet opening by the oatingweight b and only ceases when the air above the beer in the pressurechanging vessel has been compressed to correspond to the excess ofpressure of 4/10 atmospheres. To force the beer out of the changingvessel a pressure of for instance 4 atmospheres may be used. Thisflrstly diminishes when the outward flow of the beer comes to an endbecause the valve 9 is forced open by the weight b and the pipe .2 canbecome filled with compressed air before the valve m moves owing to thesliding of the piston'i and the outlet way 13 is left open.

The adjustable safety valve to in the pipe 1) has the effect ofpreventing any undue increase in pressure in the air compressor frombeing transmitted to the pressure changing vessel by making it pass offthrough this valve shortly before entering into the valve box. If avalve of this kind were not novided there would be the danger of the eerbeing forced violently and with much froth out of the changing vessel onaccount of the increased pressure. The method of inserting this safetyvalve may of course be varied. For instance, the weight may be replacedby a spring capable of being adjusted by a screw or any like device.

Having now particularly described and ascertained the nature of our saidinvention, and in what manner the same is to be performed, we declarethat what we claim is:

1. In a beer raising device, the combination of two vessels arrangedparallel to each other and having air exhaust pipes, pipes foralternately conducting the beer from a storage vessel into said parallelvessels, and for conveying the beer from said parallel vessels, floatingweights in said vessels, a valve box having a compressed air inlet and aplurality of air outlets, pipes connecting the air .outlets of saidvalve box with said vessels, a sliding valve in said box arranged toclose said air outlets, a piston rod extending through said valve boxand connected intermediately of its ends to said valve, cylindersdisposed adjacent said box into which the ends of said rod extend,pistons on the opposite ends of said rod arranged to operate in saidcylinders, means for controlling said pistons operated by the falling ofthe floating weights said cylinders having openings connected with theair exhaust pipes of said vessels, and said cylinders having air outletopenings disposed in advance of the openings to which valve in said boxarranged to close said air I In testimony whereof We have hereunto 10outlets, a piston rod extending through said i set our hands in presenceof tWo subscribing box and cpnneoteld intermediatelfi cf itsh endsWitnesses.

to said Va ve, an means 0 erate t e air r from the exhaust pipes o lsaid ve s sels for JOHN HENRY W ORTMANN moving Said rod in Oppositedirections to CARL WILHELM CORNELIUS HERBSI. open and close the airoutlets of said valve Witnesses:

box alternately on the downward movement ERNEST H. L. MUMMENHOFF,

of said floating Weights in said vessel. OTTO W. HELLENISGH.

